Background: High resolution chest computed tomography (HRCT) plays vital role in finding of COVID-19 and differentiation between COVID-19 with other types of chest infection. Objective: The aim of the present study was to assess HRCT chest's usefulness in identifying COVID-19 pneumonia and distinguishing it from other chest infections. Patients and methods: Our comparative study included 50 patients and HRCT was performed for all cases. A total of 38 patients were confirmed to have COVID-19 by typical HRCT findings and PCR, and 12 patients were confirmed non COVID-19 by history, lab investigations and atypical CT finding. All cases were graded using CORADS scoring system. Results: Common CT findings included ground-glass concentrations in the periphery and subpleura. Prominent interlobular septations; also, vascular dilatation, consolidation, fibrotic streaks, atelectatic bands are also CT findings. Consolodations, cavitations, calcifications pleural effusion are more common in other types of chest infections. Conclusion: CORADS system helps radiologists grading typical CT finding and making decision of presence of COVID-19 or other types of chest infection.